Redesign Road Project Using Critical Chain Project Management Method and Crashing Method

Abstract

Construction of the Provincial road project from Parigi to Sukamanah is carried out by PT. Jaya Madiri Konsulindo as consultant and PT. Karya Tunas Mandiri Persada as contractor. The problem of the construction project is implementation duration does not match to previous planning which results delay in completion time. It is necessary to re-plan the project in order to get either optimal time or cost. The purpose of this research is to find out the critical work path using critical chain project managemet method by utilizing microsoft project software and optimization of project time and cost using crashing method with alterative increase of working hours (overtime) and addition of labor. The research' scope is limited on labor cost only. Based on the results of the study obtained that initial labor wage cost is IDR 585,025,000.00 with a working duration of 154 days, and results of the alterative crashing method is lower with labor wage cost IDR 576,750,000.00. It could save cost about IDR 8,275,000.00 with duration of work 150 days or earlier 4 days from the initial duration.

Analisis Manajemen Proyek dengan Sistem Umbrella Contract Menggunakan Metode Time Cost Trade Off (Studi Kasus: PT Jaya Inti Teklindo)

“…Menurut (Sofia & Putri, 2021) efisiensi waktu diperoleh sebesar 14,71% dengan penambahan jam kerja dan 16,18% bila dilakukan penambahan jumlah tenaga kerja. Berbeda dengan penelitian oleh (Sulistyo, Ilpan, et al, 2021) bahwa penambahan tenaga kerja dapat memberikan biaya produksi yang lebih rendah dibandingkan dengan penambahan jam kerja. Sedangkan pada penelitian yang lain, menurut (Sulistyo & Al Fikri, 2021), 2 shift kerja lebih menguntungkan karena bisa mempercepat waktu dengan biaya upah yang relatif lebih kecil dibandingkan dengan penambahan jam kerja (lembur) 1 dan 2 jam.…”

“…Pada Microsoft Project ada beberapa macam hubungan keterkaitan antar pekerjaan (Sulistyo, Siagian, et al, 2021), yaitu Finish to Start, Finish to Finish, Start to Start dan Start to Finsih. Menghubungkan antar kegiatan dengan cara mengisi kolomi predecessors (tugas yang harus diselesaikan sebelum tugas tertentu dimulai) sesuai dengan time schedule (Sulistyo, Ilpan, et al, 2021)…”